Jess invites Nick and Angie to spend a couples’ weekend with her and Sam. Once there, however, she quickly discovers that two’s company and four’s a crowd. Meanwhile, Winston tries to teach Schmidt about race relations.
The members of the team travel to Mexico when the daughter of a tech billionaire is abducted; Walter participates in an interview that leads to hurt feelings.
As the team races to stop a violent band of armed robbers, the search is complicated by civilians using a public safety app that encourages vigilantism; Street receives difficult news that alters his future.
Christian becomes furious when Sean agrees with Grace, who is now the practice's in-house psychologist, regarding a woman's desire for extensive surgery in order to look beautiful for her high school reunion.
Tang prepares to move to another precinct; Lydia is pressured to make a decision about her police duties during her pregnancy; Ben tries to track down a prostitute.
